1cab05c53SIgor Russkikh /* SPDX-License-Identifier: (BSD-3-Clause OR GPL-2.0) */ 2cab05c53SIgor Russkikh /* Copyright (C) 2014-2017 aQuantia Corporation. */ 3cab05c53SIgor Russkikh 4cab05c53SIgor Russkikh /* File aq_hw_utils.h: Declaration of helper functions used across hardware 5cab05c53SIgor Russkikh * layer. 6cab05c53SIgor Russkikh */ 7cab05c53SIgor Russkikh 8cab05c53SIgor Russkikh #ifndef AQ_HW_UTILS_H 9cab05c53SIgor Russkikh #define AQ_HW_UTILS_H 10cab05c53SIgor Russkikh 11*72b452c5SDmitry Kozlyuk #include <errno.h> 12cab05c53SIgor Russkikh #include <rte_common.h> 13cab05c53SIgor Russkikh #include <rte_io.h> 14cab05c53SIgor Russkikh #include <rte_byteorder.h> 15cab05c53SIgor Russkikh #include <rte_random.h> 16cab05c53SIgor Russkikh #include <rte_cycles.h> 17cab05c53SIgor Russkikh #include "atl_common.h" 18cab05c53SIgor Russkikh #include "atl_types.h" 19cab05c53SIgor Russkikh 20cab05c53SIgor Russkikh 21cab05c53SIgor Russkikh #ifndef HIDWORD 22cab05c53SIgor Russkikh #define LODWORD(_qw) ((u32)(_qw)) 23cab05c53SIgor Russkikh #define HIDWORD(_qw) ((u32)(((_qw) >> 32) & 0xffffffff)) 24cab05c53SIgor Russkikh #endif 25cab05c53SIgor Russkikh 26cab05c53SIgor Russkikh #define AQ_HW_SLEEP(_US_) rte_delay_ms(_US_) 27cab05c53SIgor Russkikh 28cab05c53SIgor Russkikh #define mdelay rte_delay_ms 29cab05c53SIgor Russkikh #define udelay rte_delay_us 30a3c9a11aSAndrew Boyer #define ARRAY_SIZE(arr) RTE_DIM(arr) 31cab05c53SIgor Russkikh #define BIT(x) (1UL << (x)) 32cab05c53SIgor Russkikh 33cab05c53SIgor Russkikh #define AQ_HW_WAIT_FOR(_B_, _US_, _N_) \ 34cab05c53SIgor Russkikh do { \ 35cab05c53SIgor Russkikh unsigned int AQ_HW_WAIT_FOR_i; \ 36cab05c53SIgor Russkikh for (AQ_HW_WAIT_FOR_i = _N_; (!(_B_)) && (AQ_HW_WAIT_FOR_i);\ 37cab05c53SIgor Russkikh --AQ_HW_WAIT_FOR_i) {\ 38cab05c53SIgor Russkikh udelay(_US_); \ 39cab05c53SIgor Russkikh } \ 40cab05c53SIgor Russkikh if (!AQ_HW_WAIT_FOR_i) {\ 41cab05c53SIgor Russkikh err = -ETIMEDOUT; \ 42cab05c53SIgor Russkikh } \ 43cab05c53SIgor Russkikh } while (0) 44cab05c53SIgor Russkikh 45cab05c53SIgor Russkikh #define ATL_WRITE_FLUSH(aq_hw) { (void)aq_hw_read_reg(aq_hw, 0x10); } 46cab05c53SIgor Russkikh 47cab05c53SIgor Russkikh void aq_hw_write_reg_bit(struct aq_hw_s *aq_hw, u32 addr, u32 msk, 48cab05c53SIgor Russkikh u32 shift, u32 val); 49cab05c53SIgor Russkikh u32 aq_hw_read_reg_bit(struct aq_hw_s *aq_hw, u32 addr, u32 msk, u32 shift); 50cab05c53SIgor Russkikh u32 aq_hw_read_reg(struct aq_hw_s *hw, u32 reg); 51cab05c53SIgor Russkikh void aq_hw_write_reg(struct aq_hw_s *hw, u32 reg, u32 value); 52cab05c53SIgor Russkikh int aq_hw_err_from_flags(struct aq_hw_s *hw); 53cab05c53SIgor Russkikh 54cab05c53SIgor Russkikh #endif /* AQ_HW_UTILS_H */ 55